Question

-0,5^3:1 1/4+0,5*2/5 решите плиз (по действиям)

Answer 1

-0,5*(-0,5)*(-0,5)=-0,125 1 1/4=1,25

-0,125:1,25=-0,1

0,5*2/5=0,5*0,4=0,2

-0,1+0,2=0,1

Answer 2

Sure, let's solve these mathematical expressions step by step:

1. (-0.5)^3 ÷ 1

First, let's evaluate the exponentiation (-0.5)^3: (-0.5)^3 = -0.5 × -0.5 × -0.5 = -0.125

Now, we divide -0.125 by 1: -0.125 ÷ 1 = -0.125

So, the result of (-0.5)^3 ÷ 1 is -0.125.

2. 1/4 + 0.5 × 2/5

Let's perform the operations step by step:

1/4 = 0.25 (since 1 ÷ 4 = 0.25)

Next, let's simplify 0.5 × 2/5: 0.5 × 2/5 = (0.5 × 2) ÷ 5 = 1 ÷ 5 = 0.2

Now, let's add the results: 0.25 + 0.2 = 0.45

So, the result of 1/4 + 0.5 × 2/5 is 0.45.

To summarize:

• (-0.5)^3 ÷ 1 = -0.125
• 1/4 + 0.5 × 2/5 = 0.45